www.excelsys.com
For detailed information please refer to the Xgen Designers’
Manual which is available on-line or contact Excelsys.
Voltage Adjustment
Output voltage can be adjusted in a number of ways:
1. On board multi turn potentiometer
2. Remote resistive programming (via Vtrim pin)
3. Remote voltage programming (via Vtrim pin)
Current Limit Adjustment
Output current limit can be Straight line or Foldback and can be
adjusted via Itrim pin.
Parallel Connection
To achieve increased current
capacity, simply parallel outputs
using the standard parallel links.
Series Connection
To achieve increased output
voltages, simply series outputs
using standard series links,
paying attention to the
requirements to maintain SELV
levels if required in your system.
Remote Sensing
When the load is remote from the power supply, the remote
sense pins may be used to compensate for drops in the power
leads. Where the power cabling contributes significant dynamic
impedance, see Xgen series Designers’ Manual.
Bias Voltage
A SELV isolated bias (always on) voltage of 5V @ 250mA
(30mA on XCE and XVE models) is provided on J2 pin 2 relative
to J2 pin 1 (common) and may be used for miscellaneous
control functions. 5V @ 500mA available on request.
Inhibit/Enable
Inhibiting may be implemented either globally or on a per
module basis (powerPac or powerMod inhibiting). Reverse logic
(enabling) may also be implemented.
AC Fail
Open collector signal indicating that the input voltage has failed
or is less thant 80Vac. This signal changes state giving 5ms of
warning beore loss of output regulation.
Power Good
Opto-isolated output signal indicates that the powerMod is
operating correctly and output voltage is within normal band.
powerPac Options
Temperature Alarm (Option 01)
Open collector signal indicating that excessive temperature has
been reached due to fan failure or operation beyond ratings. This
signal is activated at least 10ms prior to system shutdown.
Fan Fail (Option 01)
Open collector signal indicating that at least one of the
powerPac fans has failed. This does not cause power supply
shutdown. The power supply will continue to operate until 10ms
after the temperature alarm signal is generated.
Reverse Fan (Option 02)
The Xgen series is available with reverse air flow direction.
Contact Excelsys for derating details.
Ultra Low Leakage current (Option 04)
The Xgen is available with the option of Ultra Low Earth Leakage
Current of <150μA and is approved to EN60601-1 and
UL60601-1 2nd and 3rd Editions.
Conformal Coating (Option C)
Xgen is available with conformal coating for harsh environments
and MIL-COTs applications.
Ruggedised Option (Option R)
Xgen is available with extra ruggedisation for applications that
are subject to extremes in shock and vibration.
Input cable Option (Option D)
3 Wire input mains cable. Input cables are 300mm in length and
come supplied with fast on connectors.
Parallel Links available to order.
Part Number XP1
J3
J4
Voltage
Adjust
M4 Screws
2 1
2
1
J4 Connector : M4 Screw
J3 Connector Mating Connector
Housing: Locking Molex 51110-0860
Non Locking Molex 51110-0850
Crimp Termnal: Molex p/n 50394
J4Connector : Camden 9200/4A
J3 Connector Mating Connector
Housing: Locking Molex 51110-0860
Non Locking Molex 51110-0850
Crimp Termnal: Molex p/n 50394
J3
J4
V1 Adjust
2 1
1
3
4
2
V2 Adjust
TYPE A Xg1-Xg7 TYPE B : Xg8
Series Links available. Part
Number XS1
Xgen Flexibility and Signals
Signal Connector Pinout
Pin J2 (powerPac) J3 (powerMod) J3 (powerMod)
Type A Type B
1 common +sense +pg (V2)
2 +5V bias -sense -pg (V2)
3 V trim inhibit (V2)
4 ac fail I trim common (V2)
5 fan fail* +inhibit/enable +pg (V1)
6 global enable -inhibit/enable -pg (V1)
7 temp alarm* +power good inhibit (V1)
8 global inhibit -power good common (V1)
*Option 01 only
